Filed under Evolutionary trees

Crinoids: our favorite echinoderms!

Crinoids: our favorite echinoderms!

Crinoids are sessile, filter-feeding benthic echinoderms restricted to marine environments.  They are the sister group to the other echinoderms, which include sea cucumbers, sea stars, and sea urchins.  Here is our current understanding of echinoderm evolution: There are many scientists working to untangle the evolutionary relationships between echinoderms, a great place to follow the progress … Continue reading